Home / 20,346.16-28,078.32-11,393.62

Finding the Fourth Proportional to 20,346.16, 28,078.32 and 11,393.62

Calculator

Solution

The fourth proportional to 20,346.16, 28,078.32 and 11,393.62 is: 15,723.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,346.16 : 28,078.32 = 11,393.62 : x
  2. Step 2: Convert to fraction form
    20,346.16/28,078.32 = 11,393.62/x
  3. Step 3: Cross multiply
    20,346.16x = 28,078.32 × 11,393.62
  4. Step 4: Simplify right side
    20,346.16x = 319,913,708.32
  5. Step 5: Solve for x
    x = 319,913,708.32/20,346.16
  6. Step 6: Final answer
    x = 15,723.54

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.